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268531230 = 235117173157
BaseRepresentation
bin10000000000010…
…111011000011110
3200201021210121010
4100000113120132
51022220444410
642351320050
76440322612
oct2000273036
9621253533
10268531230
11128640540
1275b20026
1343830426
1427941342
1518894c20
hex1001761e

268531230 has 128 divisors (see below), whose sum is σ = 727335936. Its totient is φ = 62899200.

The previous prime is 268531229. The next prime is 268531247. The reversal of 268531230 is 32135862.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1710312 + ... + 1710468.

It is an arithmetic number, because the mean of its divisors is an integer number (5682312).

Almost surely, 2268531230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268531230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363667968).

268531230 is an abundant number, since it is smaller than the sum of its proper divisors (458804706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268531230 is a wasteful number, since it uses less digits than its factorization.

268531230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 268531230 is about 16386.9225298712. The cubic root of 268531230 is about 645.1562868679.

The spelling of 268531230 in words is "two hundred sixty-eight million, five hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 71 73 110 142 146 157 165 213 219 314 330 355 365 426 438 471 710 730 781 785 803 942 1065 1095 1562 1570 1606 1727 2130 2190 2343 2355 2409 3454 3905 4015 4686 4710 4818 5181 5183 7810 8030 8635 10362 10366 11147 11461 11715 12045 15549 17270 22294 22922 23430 24090 25905 25915 31098 33441 34383 51810 51830 55735 57013 57305 66882 68766 77745 111470 114026 114610 122617 126071 155490 167205 171039 171915 245234 252142 285065 334410 342078 343830 367851 378213 570130 613085 630355 735702 756426 813731 855195 1226170 1260710 1627462 1710390 1839255 1891065 2441193 3678510 3782130 4068655 4882386 8137310 8951041 12205965 17902082 24411930 26853123 44755205 53706246 89510410 134265615 268531230